WorksheetsParsitlogy Test 1
Total questions: 51
Worksheet time: 51mins
Name
Class
Date
1.
Naegleria fowleri causes
a)
Primary amoebic meningoencephalitis (PAM)
b)
Chronic liver abscess
c)
Amoebic hepatitis only
2.
Macroparasites are best described as
a)
Parasites that multiply inside the host
b)
Parasites that do not multiply inside the host
c)
Viruses
d)
Bacteria
3.
What broken bone(s) allows for PAM (Primary amebic meningoencephalitis) (Naegleriafowleri) to infect humans easier?
a)
Collar
b)
Femur
c)
Tibia
d)
Nose
4.
What is the main difference between a heteroxenous and monoxenous parasites?
a)
Nature of their reproduction (i.e. asexual vs sexual)
b)
Size (i.e. large vs small)
c)
Aggregation (i.e. forms colonies vs remains isolated)
d)
Amount of hosts in a lifetime (i.e. multiple vs singular)
e)
Type of definitive host (i.e. invertebrate vs vertebrate)
5.
What is the body form that corresponds to the "leishmanial" form of Leishmania sp.?
a)
Epimastigote
b)
Amastigote
c)
Trypomastigote
d)
Promastigote
e)
Choanomastigote
6.
Which of the following symptoms is NOT characteristic of complicated malaria?
a)
Severe anemia
b)
Abnormalities in blood coagulation
c)
Pulmonary edema
d)
Cardiovascular shock and collapse
e)
Uncontrolled vasodilation
7.
Which type of nitrogen excretion is most characteristic of Protozoa?
a)
Uricotelic
b)
Ammonotelic
c)
Ureotelic
d)
They do not excrete nitrogen
8.
Which type of Trypanosoma brucei causes sleeping sickness
a)
T.b. brucei
b)
T.b. gambiense
c)
T.b. rhodesiense
d)
B&C
e)
B&A
9.
Do cutaneous leishmaniasis cause enlargement of the spleen and liver?
a)
T
b)
F
10.
all parasites are heterotrophic.
a)
T
b)
F
11.
All the following are true about schistosomes EXCEPT:
a)
They are dioecious
b)
Adults live in blood vessels
c)
Eggs hatch in water
d)
They Require two intermediate hosts
12.
A parasite that is classified as heteroxenous....
a)
Has only one host.
b)
Reproduces within the host.
c)
Has more than one host.
d)
Reproduces outside of the host.
13.
The science of classifying organisms formally, including parasites, is called
a)
Taxonomy
b)
Ecology
c)
Parasitology
d)
Classificology
14.
Hyperparasitism refers to parasites that infect other parasites.
a)
T
b)
F
15.
Parasitology is the study of viruses and bacteria in relation to parasites
a)
T
b)
F
16.
Which parasite causes the slow-developing form of sleeping sickness (Africantrypanosomiasis)
a)
Trypanosoma brucei brucei
b)
Trypanosoma brucei rhodesiense
c)
Trypanosoma brucei gambiense
d)
Trypanosoma brucei cruzi
17.
Which of these listed below is not true for Platyhelminthes?
a)
They are bilaterally symmetrical
b)
They are diploblastic
c)
They lack an anus
d)
They have no body cavity other than the gut
18.
What drug treats Toxoplasma gondii?
a)
Spiramycin
b)
Eflornithine
c)
Pentamidine
d)
Syramin
19.
______ and ________ are the most common species of malarial parasite and are found inAsia and Africa.
a)
P. falciparum and P. malariae
b)
P. malariae and P. vivax
c)
P. ovale and P. malariae
d)
P. falciparum and P. vivax
20.
Sometimes parasites do not have a digestive tract because they absorb their nutrientsdirectly from their hosts.
a)
T
b)
F
21.
What is not a treatment of African Trypanosomiasis (sleeping sickness)?
a)
Panadol
b)
Melarsoprol
c)
Eflornithine
d)
Pentamidine
22.
A roundworm called Toxocara canis is predominantly found in dogs and has a normal lifecycle when it occupies this particular host. A child plays with a dog that is infected and getsthe parasite. This parasite begins to infect an unusual host (the baby) and completes the lifecycle there. The roundworm is an example of a:
a)
Permanent parasite
b)
Accidental parasite
c)
Obligate parasite
d)
Two of the above are correct
e)
None of the above are correct
23.
Trichomonas vaginalis differs from many protozoa in that it:
a)
Possesses both trophozoite and cyst stages.
b)
Trichomonas vaginalis differs from many protozoa in that it:
c)
Multiplies only in the environment, not inside humans.
d)
Requires an animal reservoir for survival.
24.
A paratenic host is best described as:
a)
The host where the parasite reaches sexual maturity.
b)
A required host for development, but no sexual maturity occurs.
c)
A host in which no development occurs, but parasite remain infective.
d)
An accidental host where the parasite cannot survive.
25.
Members of Class Cestoda (tapeworms) are:
a)
Ectoparasites of fish gills
b)
Intestinal parasites in vertebrates
c)
Free-living flatworms
d)
Blood flukes
26.
The infective stage of Entamoeba histolytica is the:
a)
Trophozoite
b)
Cyst
c)
Schizont
d)
Sporozoite
27.
Trichomonas vaginalis can persist in the human host for up to two years.
a)
T
b)
F
28.
Which feature best distinguishes a metapopulation from an infrapopulation
a)
Parasite life stage
b)
Infection severity in one host
c)
All parasites in a single host
d)
Combined parasite populations in all hosts of a species
29.
Which of the following best defines intensity in parasite ecology
a)
% of total hosts infected
b)
# of new infections over time
c)
Avg. number of parasites per infected host
d)
Avg. number of parasites per unit area
30.
hich parasite would most likely use anticoagulants to aid in feeding?
a)
Plasmodium inside red blood cells
b)
Taenia absorbing nutrients in the gut
c)
Tick feeding on host blood
d)
Toxoplasma encysted in brain tissue
31.
Which of the following best describes a parasite with a high prevalence but low intensity?
a)
Infects few hosts but heavily
b)
Infects many hosts, each with few parasites
c)
Infects many hosts with high parasite counts
d)
Rarely infects any host
32.
Why are parasites always at a higher trophic level than their host?
a)
They photosynthesize
b)
They depend on abiotic energy
c)
They extract energy from host tissues or systems
d)
They decompose host matter after death
33.
What is the name of the symbiotic relationship in which one organism uses another for transportation?
a)
Parasitism
b)
Commensalism
c)
Phoresis
d)
Mutualism
e)
None of the above
34.
Choose the option that best describes the impact of commensalism on the two involvedparties.
a)
Both parties benefit
b)
One party benefits, the other is hindered
c)
One party benefits, the other is unaffected
d)
Both parties are unaffected
35.
Parasites that are known to consume the host entirely are called:
a)
Parasitoids
b)
Paratids
c)
Parasites
d)
Paratoids
36.
Which drug is used to treat Chagas’ disease in humans?
a)
Syramin
b)
Melarsoprol
c)
Benznidazole
d)
Pentamidine
37.
Which statement about the trophic relationships of parasites is correct?
a)
Parasites always live at a lower trophic level than their hosts
b)
Parasites are primary consumers and may feed directly on host tissues or indirectly onhost homeostasis
c)
Parasites are autotrophic and produce their own energy
d)
Trophic relationships are irrelevant for parasites
38.
Schizogony in parasites refers to:
a)
Binary fission producing two daughter cells
b)
Sexual reproduction with little parental care
c)
Multiple fission where the nucleus divides many times before cytokinesis, producingmany daughter cells simultaneously
d)
Hermaphroditic parasites producing gametes
39.
What is the name of the disease that is also known as Texas cattle fever or tick fever?
a)
Hemolytic anemia
b)
Benzimidazole
c)
Babesiosis
40.
What infection is caused by humans ingesting undercooked, salted, pickled or smokedfreshwater fish?
a)
Toxoplasmic encephalitis
b)
Clonorchiasis
c)
Schistosomiasis
41.
The difference between sporogony, and schizogony in malaria is: schizogony occursasexually within human host, and sporogony occurs sexually within mosquito host.
a)
T
b)
F
42.
Which of the following is not a characteristic of Schistosoma mansoni?
a)
Blood fluke
b)
Intermediate host is a snail
c)
Larva is the diagnostic stage
d)
Penetrates skin in water
43.
Intestinal Protozoa can be amoebas, flagellates or ciliates.
a)
T
b)
F
44.
Which Plasmodium species is most dangerous and can cause cerebral malaria?
a)
P. malariae
b)
P. vivax
c)
P. ovale
d)
P. falciparum
45.
Trypanosoma brucei gambiense causes:
a)
Acute sleeping sickness (East Africa)
b)
Chronic sleeping sickness (West Africa)
c)
Chagas’ disease
d)
Leishmaniasis
46.
The diagnostic method for trichomoniasis is:
a)
Blood smear
b)
Wet mount of vaginal/urethral secretions
c)
Biopsy of liver
d)
Chest X-ray
47.
Thinking about the many ways parasites can infect their hosts, what are some of the speciesbelow that can be grouped to present the same method?
a)
Ingestion of contaminated water/food: Chilomastix mesnili, Giardia lamblia,Trichomonas vaginalis
b)
Ingestion of contaminated water/food: Giardia lamblia, Entamoeba hystolitica,Fasciola hepatica
c)
Ingestion of contaminated water/food: Giardia lamblia, Schistosoma mansoni,Fasciola hepatica, Toxoplasma gondii
d)
Mosquito/ bug bite: Trypanosoma cruzi, Plasmodium falciparum, Clonorchis sinensisE. Mosquito/ bug bite: Trypanosoma cruzi, Plasmodium vivax, Paragonimus westermani
48.
What is the most common and abundant parasitic worm of all classes of Vertebrates?
a)
Flukes
b)
Tapeworms
c)
Hookworms
d)
Pinworms
49.
Amphystomes have:
a)
Oral sucker
b)
Acetabulum
c)
A & B
d)
Neither
50.
What can Malaria be mistaken as
a)
Toxoplasmosis
b)
Babesiosis
c)
Giant intestinal flukes
d)
Trichomoniasis
51.
Protozoa move by
a)
Pseudopodia
b)
Flagella
c)
Cillia
d)
All of the above
100 %
